{"cve":"CVE-2026-95806","nvd":{"published":"2026-09-22T16:18:24.547","modified":"2026-09-22T16:18:24.667","status":"Deferred","description":"MISP ships with PHP's phar stream wrapper registered in both its web entry point and its console entry point. \n\nThe phar stream wrapper causes PHP to treat a phar archive as a directory, which has two security consequences:  \n\n - any filesystem operation on a caller-influenced path that resolves to a phar archive triggers an implicit unserialize() call, creating a deserialization sink;\n - a relocated application root can reach executable code inside an uploaded phar file, enabling arbitrary code execution as the web user.\n\n\n\n\nNo component of MISP, the vendored CakePHP framework, or any runtime-loaded library reads or constructs phar archives. The wrapper therefore serves no legitimate purpose in the MISP runtime and exists solely as an available primitive for an attacker who can influence a filesystem path argument.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":7.7},"cvss_v3":null,"cwes":["CWE-74","CWE-502"],"references":["https://github.com/MISP/MISP/commit/08fa755b6"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:56:02.509636177+00:00"},"epss":{"cve":"CVE-2026-95806","score":0.00392,"percentile":0.33326,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}